I have a 2001 first gen iPod, and I have noticed that if I pick up the iPod while it is plugged into the wall, it stops charging. If I pick it up while it is plugged into the computer, it restarts. Another possibly related problem is that the iPod will not charge unless I keep my hand firmly pressed against the charging brick when it is plugged into the wall. It usually stops charging if I move my hand. Could this be a faulty Firewire port on the iPod? Or perhaps the charging cable is on its way out?

I think I'll find a new FW cable and charging brick on eBay sometime soon. I'm hoping that the port on the iPod isn't damaged, because that would mean soldering would be in involved in fixing it. Thanks for everyone's help!